<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title>SVG绘制多边形</title>
	</head>
	<body>
		<svg xmlns="http://www.w3.org/2000/svg" version="1.1" width="100%" height="100%">
             <polyline points="40,10 90,50 70,80 30,90 20,30 40,10" style="fill:white;stroke:blue;stroke-width:4" />			
		</svg>
	</body>
</html>